R Pinto
Articles written in Bulletin of Materials Science
Volume 14 Issue 2 April 1991 pp 451-455 International Conference On Superconductivity—I
Superconducting Y-Ba-Cu-O films by rf sputtering in axial magnetic field
Films of Y-Ba-Cu-O system have been prepared by rf sputtering from composite Y-Ba-Cu-O targets in an axial magnetic field in 4:1 Ar/O2 mixture on 〈100〉 SrTiO3 and 〈100〉 MgO substrates at 270°C and 450°C. Although back-sputtering caused due to negatively-charged oxygen ions was found to drastically vary the film composition about the centre of the sputtering axis, by properly orienting the substrates with respect to the sputtering axis near-stoichiometric films have been obtained. Films annealed at 900°C in oxygen have shown superconducting onset at 88°K and zero resistance transition at 72°K.
Volume 16 Issue 6 December 1993 pp 685-692
Oxygen incorporation during
S P Pai R Pinto P R Apte C P D’Souza A G Chourey D Kumar
Oxygen out-diffusion during cooling and heating of
Volume 22 Issue 3 May 1999 pp 243-249 High Tc Superconductors: Thin Films And Vortex Pinning
Novel ceramic substrates for high Tc superconductors
J Koshy J Kurian R Jose Asha M John P K Sajith J James S P Pai R Pinto
A group of complex perovskite oxides REBa2NbO6 (RE=La and Dy) have been synthesized and developed for their use as substrates for both YBa2Cu3O7-δ and Bi(2223) superconductors. These materials have a complex cubic perovskite (A2BB′O6) structure with lattice constants,
Volume 22 Issue 3 May 1999 pp 251-255 High Tc Superconductors: Thin Films And Vortex Pinning
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S K Arora Ravi Kumar D Kanjilal G K Mehta S Khatua R Pinto Vijay Kumar A K Gupta
Effect of 250 MeV107Ag ion irradiation induced columnar defects on the noise properties of the YBCO superconductor in the normal and superconducting state have been investigated. Magnitude of the spectral density of the noise is found to scale inversely with the frequency and exhibit a quadratic dependence on the bias current confirming that the noise arises due to the resistance fluctuations. The magnitude of
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Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020
Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020
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